Eyeleting-machine.



EMORY S. ENSIG-N, 0F BRIGHTON, MASSACHUSETTS.

EYELETING-IVIACHINE.

Specification of Letters Patent.

Patented Nov. 9, 1915.

Application filed January 21, 1915. Serial No. 3,456.

To all whom it may concern:

Be it known that I, EMORY S. ENsIoN, of Brighton, in the county of Sulfolk and State of Massachusetts, have invented certaln new and useful Improvements in Eyeleting-Machines, of which the following is a specification.

This invention relates to eyeleting machines and is in the nature of an improvement on my application No. 807,543, filed Dec. 18, 1913.

In this invention I have added an automatic feed for the metal strip or tape, have changed the detail of the handle-bar, have introduced swinging instead of sliding supports for the tape end and have added an automatic extractor for stripping the fin ished eyelet from the punch.

Other minor improvements will appear in the further description herewith, as well as in the drawings which accompany and form part of this specification, and in which,-

Figure 1 is a vertical central section of one embodiment of my new machine, taken on line 1-1 of Fig. 2. v Fig. 2 is a vertical section on line 2-2 of Fig. 1. Fig. 3 is a plan section on line 3-3 of Fig. 1. Fig. 4 is an enlarged, partial section on line H of Fig. 1, showing the completed operation. Fig. 5 is a top view of one of my clenched eyelets. Fig. 6 is a bottom view of the same.

This invention is designed to produce the same result as in my application No. 807,543, above referred to, but the improvements here disclosed serve to perform the work in a more practical manner, whereas the addition of the automatic feed, above referred to, permits the use of a tape-reel for storing a considerable length of tape for immediate use.

The frame, preferably in one piece, comprises an upper portion 1 and a lower portion 2, the latter forming a base which may be secured to a table top, if desired.

The punch or maledie 3, preferably of square cross section, has a pyramidal cutting point 4 adapted to pierce the end portion 5 (hereinafter referred to as eyelet 5) of the tape T which has been fed into position beneath punch 3, and form a square opening through said portion whereby the punched sections, of tri-angular shape, are arranged as depending lugs 6 around the periphery of said opening; these lugs forming the clenching agents, as is best seen in Figs. 5 and 6, the material clenched being designated by the letter P.

The female die 7 is mounted in the part 2 of the frame, being adjustably held up against the work by a lock-nut 8. As will be noticed in Figs. 1 and 4, a slight lateral clearance is provided for die 7 so that it may automatically adjust itself to the line of motion of punch 3. p The periphery of the openmg through die 7 is adapted to permit the free passage of punch 3 but will operate as a cutter to completely sever the punchings from the paper P.

In forming the eyelet 5, I prefer to em ploy means which will insure the shaping of lugs 6 into vertical dependencies of the eyelet and prevent any of saidlugs from curling back away from the opening, as such curling tends to interfere with the proper passage of lugs 6 through the paper P. These means may be described as follows :Underlying the strip which is to form eyelet 5 is a pair of frame portion 1 at 11 and yieldingly held in register beneath punch 3 by springs 12. Mounted in each block 10 is a plunger 13 of sufficient width to span the punch 3 and the lugs 6, and having a reduced stem 14 slidably mounted in an opening 15 in block 10. The recess 16, in which plunger 13 plays, is deep enough to permit punch 3 to push the plunger fro-m its path when descending to form and clench eyelet 5, a spring 17 causing the return of plunger 13 when the movement of block 10 permits. A pin 18, fast in block 10, serves to limit the action of spring 17, the groove 19 in stem 14. permitting the necessary play. This arrangement permits point 4 to perforate the eyelet and separate the plungers 13, the top meeting edges of which are slightly chamfered, as indicated at 20, Fig. 3. This separation of plungers 13 occurring while blocks 10 are in the up right position, seen in Figs. 1, 2 and 3, provides an opening with a vertical sustaining wall on each side, to iron out the lugs 6 perfectly fiat between those walls and the punch 3, and thus complete the formation of eyelet 5, except for the severing from the strip of tape T.

Closely surrounding punch 3 and slidable thereon is a sleeve 21 whose lower edge 'acts as a clenching shoulder to set the eyelet 5,

movable blocks 10 pivoted to the stationary until a shoulder 25 i 3, engages the from the punch.

shown in Figs. 1 and 2, pin 23 is at the upper end of slots 24 and sleeve 21 is suspended on pin 23, thus allowing clearance for advancing tape T beneath the sleeve. As soon as punch 3 descends suificiently to permit point 4 to engage the tape, sleeve 21 w ll rest, by gravity, on said tape and remain upper edgeof sleeve 21 (by which time eyelet 5 is formed, as above described) and forces the sleeve downward with punch 3, severing tape T and carrying eyelet 5, threaded on punch 3, 1nto clenching position on the paper P, the lugs 6 crushing their way through sald paper and being clenched beneath same, as seen 111 Fi 4.

is sleeve 21 descends it forces blocks 10 apart against the action of spr1ngs12 unt1l they occupy the positions seen in Fig. 4, from which they will automatically return to their original positions when permitted by the rising of sleeve 21.

The shoulder 25, on punch 3, is formed onbar 28 is pivotally attached. The complete operation of forming and setting a single eyelet 5 consists of a complete downward stroke of handle 29 and its automatic upstroke through the agency of a spring 30 attached to the tail-piece 31 of handle-bar 27 at 32.

By the foregoing it will be clear that when punch 3 ascends, after the setting operation, the sleeve 21 remains stationary on eyelet 5 until pin 23 engages the upper ends of slots 24, after which they will rise together. By this delayed operation of sleeve 21, its weight and the friction of blocks 10 cause sleeve 21 to strip the clenched eyelet As the force exerted on stem 26 is eccentric to its line of motion, I prefer to line the bearing in frame portion 1 with a hardened steel plate 33, secured to frame 1 by screws 34. Frame-portion 1 is open at the front for the purpose of mounting the moving parts, after which a cover-plate 35 is secured to frame 1 by screws 36, thus entirely concealing blocks 10 and their mountings when the machine is at rest. A link 37, pivotally connected to tail-piece 31 between the.pivot 27 and the pivot 32, as at 38, has its lower end pivoted at 39 to the fast on punch same pin that serves for the lower connection for spring 30. The compensating action of this fulcrum 38 permits plunger 26 to move vertically in frame-portion 1.

In the rear of the frame I preferably mount two feeding rolls 40 and 41, the former overlying and the latter underlying tapeT which is fed from a reel 42, under a stationary pin 43 (or roll, if desired), between rolls 40 and 41 and under one or more pins 44 (or rolls, if desired) to prevent buckling of tape T' as it is fed forward. When fed, the free end of tape T abuts against cover-plate 35, which forms a stop.

The surface of roll 40 is preferably knurled or roughened and, at one end of its motion is illustrated in somewhat exaggerated form at 49, Fig. 1.

Outside of one of the ribs '50, which are formed integral with the frame, a wristplate 51 is fast on shaft 48, said wrist-plate having fast thereon a Wrist-pin 52 which serves as a fastening for a spring 53 and also an as abutment for a rod 54 which spring 53 surrounds and guides. At its upper end, rod 54 is formed into a slotted link to slidably engage pivot 27, the upper end of spring 53 being fastened to this link at 55.

The action is as follows :With the parts as seen in Fig. 1, pivot 27 is at the upper end of slot 56 on rod 54 and spring 53 is under some tension that holds shaft 48 up in its loosebearing 49 so that tape T is firmly held between rolls 40 and 41 and would be fed slightly farther but for the stop formed by plate 35. As soon as power is applied to handle 29, pivot 27 begins to descend, rod 54 following until its lower end abuts against wrist-pin 52, whereupon the action of spring 53 ceases temporarily. Further descent of pivot 27 causes a sliding of same in groove 56, rod 54 accommodating itself to the vertical movement of pivot 27, until said pivot engages the lower end of slot 56, whereupon the further descent 'of pivot 27 forces rod 54 against wrist-pin 52 to cause a partial, backward rotation of roll 41, whose shaft 48 is now at the bottom of its loose bearing 49, to prepare roll 41 for taking a new grip on tape T. As pivot 27 rises, it slides in slot 56 until it reaches the top thereof, whereupon it carries rod 54 upward, extending spring 53 but not feeding tape T until sleeve 21 has risen above its motion is the feeding action for tape T as seen in Fig. 1.

which is carried against stop plate 35, as above described.

As a summary, the complete operation is thus described: With the machine at rest, tape T is in position for forming eyelet 5, The paper P is properly positioned on die 7, the set-screw 60 acting as an adjustable gage, and handle-bar 29 is sharply depressed and immediately released. This action causes the following operations.

Point 4, of punch 3, pierces the tape, forcing plungers 13 back against the action of springs 17 and arranges lugs 6 vertically around the perforation. Then shoulder 25 engages sleeve 21 and causes said sleeve to sever the tape where it overlies cutter 22. Next, sleeve 21 forces blocks 10 outward against the action of springs 12, and-eyelet 5, threaded on punch 3, is carried downward toward paper P and die 7. Point 4 next pierces. paper P and entirely removes the punchings therefrom, lugs 6 crush through paper P and are clenched against die 7 and underneath paper P. Meanwhile roll 41 has been given its backward motion for the purpose of taking a fresh grip on tape As punch 3 rises, through the agency of spring 30, sleeve 21 remains behind to strip the clenched eyelet from the punch, whereafter it rises with punch 3 to its initial position. During the rising of sleeve 21, tape T has been subjected to the feeding action of rolls 40 and 41, through the agency of spring 53, but such feed is prevented by sleeve 21 until the lower end of said sleeve has been carried above the path of the tape, whereupon tape T is fed forward against its stop-plate 35. As roll 41 merely oscillates between fixed. limits, I prefer to provide stops 61 on said roll adapted to cooperate with a stop 62 on the frame, to limit the possible oscillation, but it is understood that when the tape is being fed, these stops do not engage each other by reason of the abutments formed, as described, by plate 35 and sleeve 21.

I do not limit myself to the construction shown.

What I claim is I 1. A frame, a punch movably mounted in said frame and adapted to form a metallic eyelet, means whereby one end of a thin metallic strip may be positioned within the influence of said punch, mechanism for causing the forming of a suitable eyelet from said end and the severing of same from the strip, intermittent feeding means for said strip, and elastic means, operatively connected with said mechanism and adapted to store up energy for a delayed automatic operation of said feeding means; in combination with means for delaying said automatic operation.

2. In an eyelet machine, a frame, a punch of angular cross-section movably mounted in said frame, means for presenting a thin metallic plate within'the range of operation of said punch, a movable support underlying said plate when so presented and adapted to be automatically moved from beneath said plate, and means, movably mounted in connection with said support, and adapted to insure the perpendicularity of the shank of an eyelet formed from said plate; in combination with mechanism adapted to cause said punch to forman angular eyelet from said plate.

3. A punch adapted to form an eyelet, means for presenting a thin metallic plate within the range of operation of said punch, a movable support underlying said plate when so presented, a self-centering die positioned within the range of operation of said punch and adapted for the setting thereagainst of a suitable eyelet, a sleeve slidably mounted onsaid punch whose motions are controlled through the agency of said punch, said sleeve being adapted tosform part of the setting means for said eyelet, and mechanism for operating said punch to successively form'an eyelet from said plate, thread said eyelet'on said punch, cause said sleeve to move said support from beneath said plate, to cooperate with said sleeve and said die in setting said eyelet, and to withdraw said punch from said eyelet while said sleeve is stationary in setting position.

4. A punch, means for presenting a thin metallic plate within the range of operation of said punch, a setting die positioned within the range of operation of said 'punch, and mechanism for causing said punch to form an eyelet from said plate and to set said eyelet against said die at a single operation; in combination with a shoulder movably mounted in conjunction with said punch and adapted to strip said eyelet from saidpunch.

5. A frame, a punch movably -mounted in said frame, means-for presenting a thin metallic plate within the range of operation of said punch, a sleeve slidably mounted on said punch Whose motions are controlled through the agency of said punch, a movable support underlying said plate when so presented, and mechanism for causing said punch to form an eyelet from said plate and to operate said sleeve to move said support from beneath said plate, set said eyelet and strip said eyelet, all by a single operation.

6. A vertically movable punch adapted to form a suitable eyelet, means for presenting aneyelet blank within the range of 0peration of said punch, and a shouldered die movably mounted in connection with said punch and having its movements controlled by said punch, said die being adapted to set said eyelet blank, when formed by said punch into asllitable eyelet, and later to alltomatically strip said eyelet from said punch; in combination with mechanism for causing the said forming, setting and str1pping by a single operation.

7. A frame, a punch movably mounted in said frame, means for presenting a, thin metallic plate within the range of operation, of said punch, a movable support underlying said plate when so presented, a sleeve slidably mounted on said punch whose motions are controlled by said punch, means for insuring vertical movement of said punch, a lever pivotally connected with said punch and adapted to impart motlon thereto, a movable fulcrum for said lever, and elastic means for retaining said punch 1n raised position.

S. A frame adapted for the presentation of one end of a thin metallic strip, means for serving a portion from said strip, and means for forming an eyelet from such severed portion; in combination with feeding mechanism for said strip comprising an intermittent feeding device, means for limiting the feeding action, means for delaying the feeding. action, and a spring adapted to store energy for the operation of said device to feed after the delaying means has completed the delaying function.

9. A punch, means for presentlng one end of a thin metallic strip within the range of operation of said punch, a setting die positioned within the range of operation of said punch, and mechanism for causing said punch to form an eyelet from said end, sever same from the strip and set said eyelet against said die; in combination with auto- 'matic means for stripping said eyelet from said punch.

10. A frame adapted for the presentation thereto of aplurality of superposed sheets of paper, or the like; a punch adapted to pierce said sheets and completely sever the punchings therefrom; means for presenting an eyelet blank within the range of operation of said punch; means for formin an eyelet from said blank; means for clenc ing said eyelet through and upon said pierced sheets; and means for stripping the clenched eyelet from said punch; in combination with mechanism for operating said punch, said clenching means and said stripping means to cause the forming, clenching and stripping at a single operation.

11. A frame, an angular punch movably mounted in said frame, means for presenting one end of a thin metallic strip within the range of operation of said punch, and mechanism for causing said punch to pierce said end and arrange the punchings therefrom in the form of angular depending lugs that are integral with said end; in combination with means for severing said end from the strip, and automatic means for feeding said strip; said feeding means including a spring adapted to store up energy shall receive and completely surround said lugs, so as to insure their perpendicularity with respect to said plate.

13. A frame, a male die movably mounted in said frame; means for threading a suitable eyelet upon said die; a female die positloned in alinement with said male die and adapted for the setting thereagainst of said eyelet; a sleeve slidably mounted on said male die whose motions are controlled by said male die, said sleeve being adapted to cooperate in the setting of said eyelet; and means whereby said. sleeve may operate, by gravity, to strip said eyelet from said male die after the setting operation is completed.

14. In an'eyelet machine, a frame; an angular'punch mounted in said frame; a sleeve surrounding said punch and movable in relatlon thereto; means for causing said punch to control the motions of said sleeve; a severing knlfe fast on said frame and adapted to cooperate with said sleeve; a setting die positloned within the range of operation of said punch; a movable platform interposed between sa1d punch and said die; and mechanism for operating said punch to move said sleeve and platform.

15. In an eyelet machine, a frame, a punch mounted in said frame; means for operating said punch; and a movable support within the range of operation of said punch and adapted to be automatically movedthrough the agency of said punch, said support comprising a pair of swinging blocks pivotally mounted in connection with said frame; and elastic means for maintaining said blocks within the range of operation of said punch; in combination with means whereby said blocks may house the end of said punch before said elastic means are overcome.

16. In an eyelet machine, a frame, a male die slidably mounted in said frame; a sleeve slidably mounted on said male die and having its motions controlled by said male die; a female die positioned within the range of operation of said male die; mechanism for I and frictional means for retaining said sleeve in setting position until the control of said male die shall overcome said frictional means.

17. In an eyelet machine, a frame, a pointed punch movably mounted in connection with said frame; a movable shoulder controlled by said punch; a movable support mounted in said frame and adapted to cooperate with Said punch and shoulder in the forming of an eyelet; sliding blocks mounted in said support; elastic means for holding said blocks in contact with each other so that their meeting point shall register w1th the path of motion of said point; mechanism for operating sald punch to separate said blocks for the purpose of housing the end of said punch within said support so as to insure the perpendicularity of the shank of the formed eyelet; and means whereby said shoulder may, through the agency of said punch, move said support.

18. A frame; a male die movably mounted in said frame; means for threading an eyelet upon said die; a shoulder movably mounted in connection with sald d 1e and controlled thereby; a female 'die positioned within the range of operation of said male die and adapted for the settlngthereagalnst of said eyelet; means for operating said male die to set said eyelet; means whereby said male die shall permit said shoulder to strip the set eyelet from said male die; and frictional means for causing said shoulder to strip said eyelet.

19. In an eyelet machine, a frame, an an gular punch mounted in said frame; means for presenting a thin metalllc plate wlthin the range of operation of said punch; a support adapted to underlie said plate when so presented; and mechanism for causing sa d punch to form an angular eyelet from said plate whose shank is composed of the material punched; in combination w1th automatic means for forming an opening within said support adapted to receive and completely house said shank and whose walls shall insure the perpendicularity of said shank with respect to said plate.

20. A frame; a punch mounted 1n Sa d frame; means for presenting a thin metallic plate within the range of operatlon ofsaid punch; a support underlying sald plate when so presented; and mechanism for causing said punch to pierce sald plate and form the punchings therefrom into' pro]ect 1ng angular lugs integral with said plate; in combination with automatic means for forming an opening within said support whose walls shall completely surround and lnsure the perpendicularity of said lugs. 21. A frame; a punch; means for presenting a thin metallic plate within the range of operation of said punch; and mechanlsm for causing said punch to pierce sa d plate and form the punchings therefrom lnto angular projecting lugs; in combination with a movable support for said plate when so presented, said support being mounted in said vder to strip said A frame and adapted to provide an opening whose walls shall receive and completely surround said lugs and thus insure their perpendicularity with respect to said plate.

22. A punch; means for presenting one end of a flexible strip Within the range of operation of said punch; means for severing said end; mechanism for causing said punch to pierce said end; intermittent feeding means for said'strip; and elastic means, operatively connected with said mechanism and adapted to store up energy for a delayed operation of said feeding means; in combination with means for tion.

23. A frame; a plunger movably mounted :ln said frame; means for presenting one end of a flexible strip within the range of operation of said plunger; means for severing said end; mechanism for operating said plunger to cause an alteration in the shape of said end; intermittent feeding means for said strip; and elastic. means, operatively connected with said mechanism and adapted to store up energy for a delayed operation of said feeding means; in combination with means for delaying the operation of said feeding means.

24. A plunger; a punch formed on said plunger; means for presenting a thin metallic plate within the range of operation of said punch; a support underlying said plate when so presented; and mechanism for causing said punch to cooperate with said support to form said plate into an angular eyelet and to thread said eyelet upon said plunger; in combination with frictional means for stripping said eyelet from said plunger.

25. A plunger; a punch formed at the end of said plunger; means for presenting a thin metallic plate within the range of. op eration of said punch; a support underlying said plate When so presented; mechanism for causing said punch to pierce said plate and to cooperate with said support to thread same on said plunger and to form the punchings into angular, projecting lugs that are integral with said plate; a shoulder movably mounted on said plunger and adapted to strip the formed plate from said plunger; and frictional means for causing said shoulplate from said plunger. 26. A plunger; a punch formed at the end of said plunger; means for presenting one end of a thin metallic strip within the range of operation of said punch; means for severing said end; mechanism for causing said punch to form an angular eyelet-from said end and thread same'on said plunger; a shoulder controlled by said plunger and adapted to strip said eyelet from said plunger; and independent means for causing said shoulder to strip said eyelet.

27 A plunger; a punch formed at the end of said plunger; means for presenting one delaying said operaend of a thin metallic strip within the range of operation of said punch; means for sever- .ing said end; mechanism for causing said punch to pierce said end and thread same on said plunger; a shoulder controlled biy said plunger and adapted to strip said en from same; and frictional means forcauslng said shoulder to strip said end.

28. A frame; a female die mounted in said frame; a plunger adapted for the threading thereon of a pierced metallic plate with projecting, angular lugs; means for causing said die and said plunger to cooperate in the clenching of said lugs; a shoulder controlled by said plunger and adapted to cooperate in said clenching; and independent means, mounted in -said frame, for causing said shoulder to strip said plate from said plunger; p

29. A frame, a female die mounted in said frame; a plunger adapted for the threading thereon of an angular eyelet; a shoulder controlled by said plunger; mechanism for causing said shoulder to cooperate with said die and said plunger in the setting of said eyelet; and frictional means for causing said shoulder to strip said eyelet from said plunger.

30. A plunger adapted for the threading thereon of a suitable eyelet; a female die positioned in alinement with said plunger and adapted forthe setting thereagainst of said eyelet; a shoulder controlled by said plunger and adapted to coo erate in saidsetting, and to strip the set eye et from said plunger; means for causing said plunger to carry said shoulder into setting position; means for causing said plunger to release control of said shoulder; and means for causing said" shoulder to strip said eyelet -from said plunger,

'31. A male die adapted for the threading thereon of a suitable eyelet; a setting die adapted to cooperate with said male die in the settingof said eyelet; means for presenting a plurality of sheets of paper, or the like, between said dies; a punch formed on said male die and adapted to pierce said sheets and completely sever the punchings therefrom; mechanism for causing the said piercing and setting ata single operation;

EMORY S. ENSIGN.

Witnesses:

A. T. PALMER, RALPH MCNARY. 

